MATLAB DATABASE TOOLBOX RELEASE NOTES Guide de l'utilisateur télécharger pdf (Page 86)

3 Simulink 4.1 Release Notes

3-4

Modeling Enhancements

This section describes enhancements to Simulink’s dynamic system modeling

tools.

Autorouting Option Added to add_line Command

The add_line command now optionally routes lines around intervening blocks

and annotations. For example, the following command autoroutes a connection

between two blocks in the

vdp model.

add_line('vdp','Product/1','Mu/1','autorouting','on')

The autorouting option is off by default. See add_line in Using Simulink for

more information.

S-Function Builder

The S-Function Builder generates an S-function from specifications that you

enter in a dialog box. It provides an easy way for you to incorporate existing

code into a Simulink model.

add_param, delete_param

With this version, you can add custom parameters to your block diagrams.

add_param('modelname','MyParameterName','value')

delete_param('modelname','MyParameterName')

You can also use the model handle in place of the model name. See add_param

and

delete_param in Using Simulink for more information.

Connection Callbacks

With this version, you can use set_param to set callbacks on ports that are

triggered by changes in the ports’ connectivity. The callback function

parameter is named

ConnectionCallback. When the port’s connectivity

changes (addition/deletion of line connected to the port, connection of new block

to the port, etc.), Simulink invokes the callback function with the port handle

as its argument. See “Port Callback Parameters” in Using Simulink for more

information.

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MATLAB DATABASE TOOLBOX RELEASE NOTES Guide de l'utilisateur Page 86